A known volume of water is poured into the cup and a thermometer is placed through the lid and under the surface of the water. When the chemical reaction occurs in the cup, the heat of the reaction is absorbed by the water.
I predicted that all of the tubes will be in a hypotonic environment after the 30 minutes because there is a higher concentration of water outside the cell. The control of the experiment was the model cell where there was water inside and outside the cell.
The first procedure that was done was a gram stain followed by a streak of the unknown on a TSA plate in order to determine the gram reaction and observe the colony morphology. The lactose test was repeated and gave a result that was consistent with the other data.
Vicker and Knoop test are microhardness tests, used to measure the local hardness of individual components of the microstructure of the material. Rockwell Hardness test is a process of procedures and the use of a triangular indenter to calculate the hardness.
There are two gels produced in the experiment, in figure 1 the gel was ideal as it is evident by the spots that represent the proteins. In this case, the protein of interest could be identified, and then cut out from the strip so that it could be measured by spectrophotometer.
Variability in Maize Yields and Properties of soil in Arable and non arable soils. The null hypothesis of the study will be that there would be a higher maize yield in arable land than in non arable land.
The paper will explore and compare the experimental and theoretical probabilities from tossing the coins for conclusions over inheritance of genes. Conclusion The results of the experiment indicate that probability distributions can be used to predict and explain inheritance of genes.
In graph representing tube 6 it is also observed that, there is no change in the O. D with time and this as well indicate that there was no mitochondria in the tube because it was water which was added.
1 RESTRICTION AND GEL ELECTROPHORESIS OF PLASMID DNA The practical report Introduction The purpose of this laboratory exercise was to acquire an understanding of the principles and practice of DNA gel electrophoresis. The analysis consisted of making measurements of each of the DNA bands on the gel in millimeters from the point of application to →
During segregation, the factors join up in twos to allow for variability of the new daughter cells. The results, of course, make sense as they are consistent with theories of Mendel's Law.
The objective of this experiment was to determine the level of protein in the nuclear pellets from cortex and medulla of rats. The purpose of the laboratory was to employ the Lowry procedure to determine the protein content of nuclear pellets from kidneys of rats.
The requirements vary according to the habitat of the organism, and each bacteria species will thrive in environments with optimal conditions. Each student in the team exposed the organism to different temperature of 40 C, 55 C, 80 C and ~100 C.
In this study the independent variable would be the amount of dissolved oxygen measured in water where as the dependent variable is the number of fish seen in a body of water. In this case, the dependent variable will be number of captured fish where as the dependent variable will be the time of the →
Maximum concentration in one hour- 0. Maximum concentration in one hour- 0.
The page also shows the whole department, clearly outlining the coursework provided by the department; which is a two-year associate of applied science degree programs, designed for preparation of students for jobs in the various fields of computer technology. The page also provides links to some institutes of the university like the Institute on violence →
Summary In the analysis of the trace, it was evident that a Network tab is comprised of tow network traffic views: the detailed view and summary view. Opening and closing a capture allows you to gather credible information on the network that one is analyzing.
The variables are based on the price, performance and features of the two brake pads. The report will use the variables to gauge the cons and pros of the pads and come up with the winning brand.
The internal temperature of the cold-blooded organisms is dependent on the temperature of the surrounding in order to maintain their own temperature. The variation of temperature in the poikilotherms results from the variations in the ambient temperature of the environment.
What phase is the Moon in? _new_ Where is the far side of the Moon? Facing away from sun_ Where is the far side of the Moon? _facing away from sun_ Position yourself and the Moon so that the Moon is in its 1st quarter phase.
The increase the efficiency of double movable pulley followed by single movable pulley the lastly single fixed pulley. Each pulley in the system cause friction and hence increases the total energy applied in the lifting of loads; double movable pulley has the most friction which has four pulleys followed by single movable pulley then lastly →
47 0 0.1 0. 981 100 10.28 3.81 0.2 1.
Calculation 1: Data Collected Distance From the Rod Electric Charge 0. Calculation 3: Data Collected Diagonal Distance Electric Charge 0.
Fresnel lens Fresnel lens is a thin plastic lens that is flat on one side and has ridges on the other; it is thick inthe middle and reduces in different zones gradually tapers to the edges. In comparison to the conventional lenses, Fresnel lens is much lighter as it reduces the amount of material required.
The deflection of the cantilever beam has a beam measured by varying load and the length of the cantilever beam. It was found that the deflection of a cantilever beam is directly proportional to the applied load and cube of the length of the cantilever.
Method This part of an experiment outlines steps involved in the study of the said phenomenon. Result The outcome of the study is determined by the results.
Basically, the smaller the pore the greater the suctional pressure, but also the larger the number of pores then greater the overall amount of water is absorbed. Weighing the mass of water absorbed by the sample when one surface of the sample is immersed in water does this.
Linear polarizers as a class of polarizers are made up of two sub-categories including absorptive and beam-splitting. An example of a linear polarizer is the wire-grind polarizer which is considered one among the simplest under the linear category of polarizers.
The ball was then fired 6 different times and the distance travelled by the ball from where the ball leaves the launcher recorded. 82 seconds Since the motion was in a horizontal direction, the Thus the velocity of the ball was = 8.
The angle with the longest distance was noted and uncertainties calculated for distance and angle. The maximum distance was realized at 600 for both catapult and launcher.
The mass used in the experiments was changed in a subsequent manner through the addition of 10 grams weight to the initial 100 grams weight of mass. Statement of conclusion The hypothesis was that there is a dependence period in the mass of the oscillator.
The peak to peak Voltage and the peak voltages were determined from the graphs obtained, and the periodic time of the waves determined. The period of the sine wave was determined using equation 1 in the introduction.
Fiber optics Fiber optics is referred to as the transmission of light through some long rods of fiber which are either glass or plastic. This enables the fiber optic cables to transmit voice, images and even other forms of data in a very high speed that is almost the speed of light.
The property of light travelling in a straight line is known as rectilinear propagation. Considering that the sizes of the holes are to be reduces, the light will continue travelling in a straight line but in a more restricted.
Conservation of momentum Conclusion Results of the first section of experiment one show an inverse relationship between mass and velo as average velocity reduces as more masses are added to the plunger cart and this indicates proportionality constant. Velocity is however higher when mass is added to the non-plunger cart than when mass is added →
If the mass of the book is doubles, the velocity is decreased since the impulse from the car remains constant. Again the average velocity of the car is recorded.
What do you feel is the quality of your water sample? The values obtained for the different parameters of the water samples fall within the ranges set for clean water.
From the 15 strategies in the Wedge Table we chose one wedge strategy at a time to fill the 8 spots on the wedge game-board, V. Using a combination of strategies will be needed to build the 7 wedges of the stabilization triangle.
In this experiment, the amount of oxygen taken up by the organism is investigated, and how this uptake is affected by the temperature and the time of the lifecycle that an organism is in. The amount of oxygen consumed was calculated by the amount of water that enters the pipette of the respirometer and the →
However before we expect the opportunities to occur it is important to plan and execute a mission that is likely to reduce carbon emission by half in the next 50 years. The increasing emission of carbon dioxide and other greenhouse gases in the atmosphere is mainly attributed to production of energy, which is required to →
This is attributed to the fact that the enthalpy of neutralization of a NaOH with a HCL involves complete ionization of the dilute aqueous solutions and hence the reaction involves higher energy. In the case of CH3COOH, while NaOH undergoes complete ionization, CH3COOH only partly ionizes and as a result the enthalpy of neutralization is →
Water was used as a common chemical in each of the experiments and we can conclude that water is not a reducing sugar, starch or protein from the tests. The only major issues with the experiments were that it was difficult to know exactly how much of the solution to put in each vile.
There is a direct proportion between the number of atoms and amount of light absorbed, therefore, we can determine the concentration of the sample by measuring the amount of light absorbed. To calculate the x values of the blood plasma and reference standard, the quadratic formula was used.x = unknown Lead concentration Y = absorbance →
The purpose of this experiment is to synthesize trans-9- anthracene from benzyltriphenylphosphonium chloride and 9-anthraldehyde through the reaction mechanism recognized as the Wittig Reaction. A more recent and inexpensive version of the reaction is the Wittig-Horner reaction.
Saponification Lab Report Background The Purpose of experiment is to produce potassium soap from saponification of fat. Saponification was popular in the early 20th century that saw the development of technology to increase the quality of soaps.
0 ml none 0 0 2 1. 5 2 10 1.5 0.
In a hypotonic solution water rushes into the cell and causes the cell to expand and eventually pop. In a isotonic solution water rushes in and out of the cell and causes the cell to stay the same.
An accelerometer is used to measure the rate of change in displacement and how it varies with time.- Objective The objective of the experiment was to study the natural frequency and stiffness of a vibrating beam. This was done by observing and analyzing the decay curve of the oscillations of an underdamped system as it →
We came to the conclusion that as the depth increases, the temperature decreases and the oxygen level decreases as well. Also, we can say that as the depth of the water increases the oxygen level decreases.
In this case the genotype would be S or s and the phenotype would be the shape of the bee. Even though the probability of having double recessive genes is lower, some traits, even in humans, the percentage of double recessive is greater than dominant.
The Lab 1 Microsoft Excel worksheet was downloaded from the " Module 1" in Canvas.2. In the last column, the value 1.
The three key features associated with a subduction zone are a deep ocean trench, a volcanic arc on the overriding plate parallel to the trench, and a plane of earthquakes, shallow near the trench and descending beneath and beyond the volcanic arc. Form a hypothesis about the relative ages of the East Pacific Rise material →
So, if this lab is completed correctly and not only will you be able to determine the acceleration and velocity of the car on the tract but of your golf ball as well, which could be fun to see who's is the highest with your friends. So, if we determine the velocity, then the acceleration →
While there is a slight differential, it was not significant enough to deem the results of the study conclusive that there is a marked advantage in word memory when heard through the right ear. It's possible that the simplicity of the word lists did not acutely test the right ear advantage strenuously enough to determine →
Task 10, Step 1: Paste a screens showing the sequence of commands that you used to issue the " extended Ring" command on the Branch router, Question: Why was it necessary to use the extended Ping command as opposed to the simple version of the command? Question: According to the crypto map, What is the →
In part B of the experiment, we were able to determine the change in mass of the lead rod from the air to the water and the volume of the lead rod. 38x10-4g.
However, have you known that the best variant to make your report ideal is to start writing it at the time when you begin the preparation for the research? A laboratory report is a type of academic writing which is focused on showing the process and the results of the investigation in black and white.
The intake 02 and the parallel elimination of CA in the lungs and is called gas exchange with the environment or otherwise breath. In physiology respiration is defined as the transport of 02 in the body from the outside air to the cells within tissues and the transport of CA in the opposite direction.
In the box below, diagram the results of the Oxides Test. IS In the box below, diagram the results of the Coagulate Test.
3D Printer 3D Printer Equipment The equipments in the lab include a Maker Bot Replicator 2, Z Corporation Spectrum 2510, FANUC Robot LR Meta 200ic, and LMU3D 1 printer. Process The process for 3D printing is a lengthy process, but in the end, it turns digital designs into realism.
In a multistep synthesis, the product of the first step is used as a starting material in a second step, and so on, until a final product is obtained. For example, in a crystallization experiment the learning objective is to illustrate the technique of crystallization by having the student perform the steps involved.
The purposes of the probe is to mensurate the force per unit area distribution on the surface of a smooth cylinder placed with its axis perpendicular to the flow and to compare it with the distribution predicted for frictionless flow, and to cipher the drag coefficient of the cylinder. Since force per unit area tapping →
The temperature was recorded when the first drop of distilled solution was collected and every mL afterwards until a temperature of 100oC was reached and 1-2 mL of solution was collected afterwards. However, this temperature was found useless as the location f the thermometer was at the top of the distillation apparatus and the boiling →
Lab report chemistry matriculation experiment 5 Lab report chemistry matriculation experiment 5 Key Terms in Literature, by Ismail S Talib, what to include in an introduction in an essay, cold war stability essay. Experiment 5.1.
The annual costs incurred in the working and maintenance of G.P. The accuracy of G.P.
An acid-base extraction is a solvent-solvent extraction, in almost every case one of the solvents is water or an aqueous solution and a requirement of a solvent-solvent extraction is that the mixture of the two solvents will separate into two layers. At the end of the procedure the neutral compound was recovered in its solid →
We tied off one end of the dialysis tubing to create a bag, filled it with distilled water, and tie of other end to close. Then we filled a 250 ml beaker with only distilled water, and immersed the bag in the beaker and let stand for 30 minutes.
On the other hand, the cartilaginous joints are bonded by the cartilage while the synovial joints are usually separated by a fluid-filled cavity. The major symptoms of the disease are portrayed by swelling and stiffening of the joints.
Results a) The result of the experimental study has put forward the bond prism strength to be 6989.b) However the shear prism strength was 5 Mpa c) The masonry mortar cylinder average strength was 93. Also it got reflected in the shear test as the mortar was slipping away while applied between the bricks.
At low concentrations, the presence of salt stabilizes the various charged groups on a protein molecule, thus attracting protein into the solution and enhancing the solubility of protein. The precipitated protein is collected and categorized according to the concentration of the salt solution at which it is formed.
The use of the oscilloscope, the signal generator, the power supply and digital multimeter were used to understand applications of various electronic circuits. Practice on the application of digital multimeter and oscilloscope in measurement of current, voltage and resistance was also achieved.
For the Vaseline to be in touch with the slide and the depression to be above the culture drop, the depression slide was upturned over the cover slip. This was meant to assist in making observations close to the edge of the culture drop and not in the middle.
It is due to molecules of the surface is resisting the molecules of the object squeezed on it. Thus, it is a force which resists the relative motion of one surface in contact with another.
As the component is been passed thru the oven, a reading is shown on the monitor that shows the area under the curve and also the retention time f the gas in the column. The gas chromatography tells us that it is only 99.
A Durham tube is used to collect any gas that may be produced, and is reported as if a bubble appears on the inside and if the organism cannot ferment the glucose and no bubble is trapped inside the tube. This is deduced by the addition of Reagent A and Reagent B, and the observation →
A lot of enzymes are bigger than the substrate they act on, but only a little part of the enzyme involved directly with the catalysis. Without enzymes the chemical reactions in the body, would be so slow, the body would shut down.
Methodology Once the experiment is set up with the Belton audiometry and the headphones, one person is supposed to wear the audiometry headphones as the other person adjusts the hearing level and the frequency of the audiometry from 125 Hz up to 8000 Hz. The operator of the audiometry and the subject hears the sound →
LL1 LL2 LL3 LL4 Initial gauge reading 0 0 0 0 0 0 0 0 0 0 0 0 Final gauge reading 13.4 14.8 14.2 18.6 19.5 18.6 19.0 19. From step of the laboratory procedure for the determination of the liquid limit, the theoretical value of moisture content which would produce a penetration of →
Allow the crucible to cool and then add 10 drops of water to convert the magnesium nitride to magnesium hydroxide.5. Weigh the crucible, its lid, and the product of the reaction.
Temperature of the solutions All the beakers were kept in the same place, so the solutions experienced the same conditions. In this experiment, the movement of water in and out of potato cells left in sodium chloride solution will be investigated.
The causal variable in the experiment would be the amount of sunlight the seed received. I would collect observable data on the percentage of each grid space that was sprouting grass.
Any attempt to alter the original data or use a different set of data in the analyses contained in this report is an act ofacademicdishonesty and will be penalized as such. Some marks will be allocated to the completeness of your data.
To prevent this, wedge a wand that has been dipped in fly nap between the foam stopper and the vial so that it reaches into the vial to anesthetize the flies. To remove the immobilizers flies from the vial, it is important to be gentle and avoid crushing any flies.
When there is a higher concentration tot one type of molecule outside of a cell, water will move through a membrane out of the cell in order to make the water concentrations equal. Record observations Of the color Of the starch and the water in the container.
After the beakers were filled to the appropriate amounts they were then labeled with the different sugar concentrations. After the tube was filled up halfway, each member then tied up the open ends of the bags tightly with string.
The chemical properties of elements in this group are marked by the high reducing power of these metals. Group 2 elements are the second most reactive family of elements in the periodic table after group 1 elements.
The breaking of the C-LV bond is completed before any reaction occurs between the base to lose a hydrogen and form the carbon-carbon double bond [1]. The peak height or the peak area is used to quantitate the amount of substance.
The null hypothesis for this experiment is that the flashier the male are more attractive they will become to the female and predators. This will lead to the decrease of population and changes in the population.
Reducing the beam spot size results in a decrease of the linewidth. The beam spot size is determined by two factors - the beam current, and the numerical aperture - and hence, linewidth is also affected when a change is brought about in any of these factors.
The ring is rotated to pare off the excess soil by cutting such that the sample is reduced to the same that is inside the diameter of the ring. 0 2566 5.
This has a lot of heat loss to the surroundings since heat is easily radiated to the surrounding air. Also, the weaknesses might cancel out a little since stirring the solution generates heat and the poor apparatus makes the solution loose heat to the surrounding air.
Remove the test tubes from the water bath using a test tube holder and place the test tubes in the test tube rack to cool, and record the color of each tube's contents in Table two. To each tube add forty drops of Beirut's solution and record the results in Table six.
Since we had the set of standards we were able to compare the colors of the drinking water with the different pH levels, to make an educated guess n what each drinking water's pH was. After we had the red cabbage indicator experiment done, we tested the actual pH level of each type of drinking →
The magnitude of parallax error indicated on each piece of volumetric glassware is low because volumetric glassware are made to measure volume of liquid very accurately with a given marker. If the mark on the volumetric is exceeded, it is be considered parallax error due to the position of eyes and the angle towards the →
The photo on the left shows the plate with the stain and the photo on the right show the plate with the banding pattern after the stain is washed off. The photo on the left shows the plate with the stain and the photo on the right show the plate with the banding pattern after →
This inventory was created to assess the states' view of current practice and policies as applied to identifying the students in need of special education services. The conflict arose because while the IDEA prior to 2004 had identified several methods to identify the students who had learning disabilities in need of special services, there was →
LAB REPORT #1 DENSITY DETERMINATION CHEMISTRY INTRODUCTION: The purpose of this experiment is to find out the density of the unknown solid object by determining the mass and the volume through the experiment. 5 Volume of Unknown: 7 Volume of Unknown: 6.